Skip to content
Fencer Vulns
medium 6.5

CVE-2020-7060 json

global buffer-overflow in mbfl_filt_conv_big5_wchar

published 2020-02-10 6 y ago modified 2026-09-08 2 mo ago also BIT-libphp-2020-7060 , BIT-php-2020-7060 , BIT-php-min-2020-7060 , EUVD-2020-28194

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
8.9%
EPSS 8.9% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.

Patch / fix

  • bitnami libphp 7.2.27, 7.3.14, 7.4.2
  • bitnami php 7.2.27, 7.3.14, 7.4.2
  • bitnami php-min 7.2.27, 7.3.14, 7.4.2
  • PHP Group PHP 7.2.27, 7.3.14, 7.4.2
  • php7.4 Debian 11 7.4.2-7

debian advisories DEBIAN-CVE-2020-7060

  • php7.0 Ubuntu 16.04 LTS 7.0.33-0ubuntu0.16.04.11
  • php7.2 Ubuntu 18.04 LTS 7.2.24-0ubuntu0.18.04.3
  • php5 Ubuntu Pro 14.04 LTS 5.5.9+dfsg-1ubuntu4.29+esm10

ubuntu advisories UBUNTU-CVE-2020-7060

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • php RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • libzip RHEL 8 1.5.2-1.module+el8.1.0+3189+a1bff096
  • php-gd RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-cli RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-dba RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-dbg RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-fpm RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-gmp RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef

red hat advisories RHSA-2020:3662RHSA-2020:5275

  • php7 SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +8 more 7.2.34-150000.4.103.1
  • php7 SLES for SAP 15, SLES 15-LTSS, SLE Module for Web and Scripting 15 SP1 +2 more 7.2.5-4.52.4
  • php5 SLE Software Development Kit 12 SP4, SLE Module for Web and Scripting 12 5.5.14-109.68.1
  • php72 SLE Software Development Kit 12 SP5, SLE Software Development Kit 12 SP4, SLE Module for Web and Scripting 12 7.2.5-1.37.1

suse advisories SUSE-SU-2022:4067-1SUSE-SU-2020:0622-1SUSE-SU-2020:0522-1SUSE-SU-2020:0397-1

  • php7 openSUSE Leap 15.1 7.2.5-lp151.6.22.1
  • php7-test openSUSE Leap 15.1 7.2.5-lp151.6.22.1

opensuse advisories openSUSE-SU-2020:0341-1

  • php AlmaLinux 8 7.3.20-1.module_el8.4.0+2229+b272fdef
  • php AlmaLinux 8 7.3.20-1.module_el8.5.0+152+112d3b8c
  • php AlmaLinux 8 7.3.20-1.module_el8.3.0+2009+b272fdef
  • libzip AlmaLinux 8 1.5.2-1.module_el8.5.0+152+112d3b8c
  • libzip AlmaLinux 8 1.5.2-1.module_el8.3.0+2009+b272fdef
  • libzip AlmaLinux 8 1.5.2-1.module_el8.4.0+2229+b272fdef
  • php-gd AlmaLinux 8 7.3.20-1.module_el8.4.0+2229+b272fdef
  • php-gd AlmaLinux 8 7.3.20-1.module_el8.3.0+2009+b272fdef

almalinux advisories ALSA-2020:3662

  • php Rocky Linux 8 7.3.20-1.module+el8.4.0+414+2e7afcdd
  • libzip Rocky Linux 8 1.5.2-1.module+el8.4.0+414+2e7afcdd
  • php-pear Rocky Linux 8 1:1.10.9-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-rrd Rocky Linux 8 2.0.1-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-zip Rocky Linux 8 1.15.4-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-apcu Rocky Linux 8 5.1.17-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-xdebug Rocky Linux 8 2.8.0-1.module+el8.4.0+414+2e7afcdd

rocky linux advisories RLSA-2020:3662

  • php7 Alpine 3.15, Alpine 3.14, Alpine 3.13 +3 more 7.3.14-r0
  • php7 Alpine 3.9 7.2.27-r0

alpine advisories ALPINE-CVE-2020-7060

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-7060 updated cvss 6.5

php: Global buffer-overflow in mbfl_filt_conv_big5_wchar function

  • Red Hat Enterprise Linux 5 php, php53 Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +18 more Red Hat Enterprise Linux 8 php, libzip, php-gd, php-cli, php-dba, php-dbg, +30 more Red Hat Software Collections rh-php72-php, rh-php72-php-gd, rh-php72-php-cli, rh-php72-php-dba, rh-php72-php-dbg, rh-php72-php-fpm, +22 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) php 7.3.20-1.module+el8.2.0+7373+b272fdef, libzip 1.5.2-1.module+el8.1.0+3189+a1bff096, php-gd 7.3.20-1.module+el8.2.0+7373+b272fdef, php-cli 7.3.20-1.module+el8.2.0+7373+b272fdef, php-dba 7.3.20-1.module+el8.2.0+7373+b272fdef, php-dbg 7.3.20-1.module+el8.2.0+7373+b272fdef, +28 more
    fixed: vendor fix RHSA-2020:3662
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more
    fixed: vendor fix RHSA-2020:5275

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-027-02 updated cvss 9.1

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

8.89% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugs.php.net https://bugs.php.net/bug.php?id=79037 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P
OSV 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami libphp
>=7.2.0, <7.2.27
>=7.3.0, <7.3.14
>=7.4.0, <7.4.2
7.2.27
7.3.14
7.4.2
bitnami php
>=7.2.0, <7.2.27
>=7.3.0, <7.3.14
>=7.4.0, <7.4.2
7.2.27
7.3.14
7.4.2
bitnami php-min
>=7.2.0, <7.2.27
>=7.3.0, <7.3.14
>=7.4.0, <7.4.2
7.2.27
7.3.14
7.4.2

Affected products

  • PHP Group PHP

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.